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<br />Hill Mesa and an area near the town of Ridgway. Ridgway Pumping Plant <br />No. 1 will pump water from the Uncompahgre river for use in the Ridgway <br />area and for conveyance by the Ridgway canal to Pumping Plant No. 2 on <br />Dallas Creek. A buried pressure pipe system will distribute the irri- <br />gation water to lands on Log Hill Mesa. The Tri-County Water Conser- <br />vancy District will provide other facilities for treatment and distribu- <br />tion of the municipal and domestic water. <br /> <br />Estimated Costs (January 1975 prices) <br /> <br />Municipal and industrial water $ 38,944,000 <br />Irrigation 35,903,000 <br />Fish and wildlife enhancement 2,432,000 <br />Recreation 10,300,000 <br />Flood control 951,000 <br />Highway improvement 1,520,000 <br />Total $ 90,050,000 <br /> <br />Water allocations: <br /> <br />Total <br /> <br />33,000 a.f. <br />19,100 <br />52,100 a.f. <br />26,700 a.f. <br />1. 8 to 1 <br /> <br />Municipal and industrial <br />Irrigation <br /> <br />Annual depletion of the Colorado River <br />Benefit-cost ratio <br /> <br />Total annual benefits <br /> <br />$ 6,844,000 <br /> <br />Environmental Impact <br /> <br />1. Temporary disturbance of water quality during construction. <br /> <br />2. Fishery quality of the Uncompahgre river will be increased by <br />including a variable outlet in Ridgway Dam for temperature control of <br />water released and by providing minimum flows substantially in excess <br />of what has historically occurred in 11 of 12 months during the year. <br /> <br />3. Secondary impacts will result from sale of water to a proposed <br />urban development on Log Hill Mesa. <br /> <br />4. Minor impacts on esthetics inhibiting big game movement and <br />reduced stream flows as they affect fisheries are expected to be <br />resolved. <br /> <br />-2- <br />